166874724 has 27 divisors (see below), whose sum is σ = 422018233. Its totient is φ = 55599072.

The previous prime is 166874713. The next prime is 166874731. The reversal of 166874724 is 427478661.

The square root of 166874724 is 12918.

It is a perfect power (a square), and thus also a powerful number.

166874724 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 12320100 + 154554624 = 3510^2 + 12432^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 166874724.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 76432 + ... + 78584.

Almost surely, 2^166874724 is an apocalyptic number.

166874724 is the 12918-th square number.

It is an amenable number.

166874724 is an abundant number, since it is smaller than the sum of its proper divisors (255143509).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166874724 is an equidigital number, since it uses as much as digits as its factorization.

166874724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4316 (or 2158 counting only the distinct ones).

The product of its digits is 451584, while the sum is 45.

The cubic root of 166874724 is about 550.5501096523.

Multiplying 166874724 by its product of digits (451584), we get a square (75357955362816 = 8680896²).

The spelling of 166874724 in words is "one hundred sixty-six million, eight hundred seventy-four thousand, seven hundred twenty-four".